Feeler motion for looms



April 22, 1930. F. ZWIEBEL 1,755,907

FEELER MOTION FOR LOOMS Filed June 21, 1929 31 29 5 INVENTORILO ATI'ORNE Patented Apr. 22, 1930 r 1,755,907

nJU N I T'ED STATES PATENT OFFICE IREDRIK ZWIEBE I OF PROSI'ECT PAR-K, NEW JERSEY FEELER MOTION FOR LOOMS Application filed June 21, 1929. Serial No. 372,573.

The object of this invention is to provide a thumb screw 19 which by means of collars 20 feeler mechanism for looms of the so-called thereon it swiveled in the wall 14 and is side swipe class whichwill not perform its tapped'into a stud 21 pivoted in the lever. side-swipe movement prematurely, as due to On the carrier which is thus formed by the the pointed or conical end instead of the cyslide 12 and'lever 17 is fulcrumed a pair of 5 lindrical part of the wound package being fecler-levers 22-23, these being also arpresented thereto, and which, instead of reranged in a horizontal plane, or more specifiquiring a special or extra-formed mass or' Cally, a plane cutting the filling package. bunch of windings to be provided as a re- One of these feeler-levers is fulcrumed on the r serve which will remain definitely attached to lever 17, as at 24; the other (22) is fulcrumed the core of the package, is adapted to perform on the pivot 18 of said lever. The two feelersaidmovement when a predetermined part of levers project toward the lay, one (23) nearthe regular windings, definitely remaining er thereto than the other and also being in the attached to said core, is left. 1 present instance the one which relatively ad- 15 v In the drawing, 1 i joins the end of the package. The two feel- Fig. 1 is a plan of so much of a loom, emer-levers are connected by a link 25 so that bodying the invention, as is necessary for they move together on their fulcra in unison. illustration ofthe latter; Their ends adjoining the filling package are Figs. 2 and 3 are sections on line 2-2, Fig. roughened so as to grip the windings, to 5 '1, showing the involved parts in different po which they are'admitted in the usual way sitions; by a slot 3 in the shuttle.

Figs. 4 and 5 are sections on lines 4-4 and What means is actuated by the feeler mech- 5-5,Fig. 1; and e p anism so far described, whether it be to cause Fig. '6 illustrates the condition of the stopping of the loom or to replenish the fill- 25 wound packagejust prior to the side-swipe ing in some way. is not material. One form nt, 7 v 1 I x of such actuated means is shown in the draw- V 1 designates the fixed structure and 2 the ing, being substantially like that set forth in lay of the loom,"and 3' is-the shuttle which the Jennings Patent No. 1,692,992; That isreciprocates as usual on the lay and contains to say, a controller 26, is' pivoted on a stud 27 1 2 the wound filling package including a quill and is connected by a link 28 with a lockor other core 4 and the windings 5, the mass lever 29 pivoted to the breast beam at 30 and of whichinitially will as usual be conical or Weighted at .29 (Fig. 1). This lock-lever pointed in form as'shown by the'dotted outnormally abuts the projection 31 of a shield line in Fig.6. 1 32 Weighted at 33 so as to assume the posi- 7 The said fixed structure here includes the tion shown in Fig. 3 when it is released by breast-beam 1 and a plate-like bracket 6 prothe lock-lever. Thisshield is fulcrumed on jecting therefrom in a horizontal plane, this the rolling-rod'34 which when rotated causes bracket havingacover-plate7 secured therestopping of the loom and which carries a "to by a scr'ew 8. The bracket has a top rebunter 35. When the shield is in the position cess 9 and each side of the recess a rabbet 10 ofFig. 2 it will fend a spring-controlled dagextending toward the lay, and arranged to gel 36 on the lay clearof the bunter 35. but move in this recess is a slide 12 Whose side if the shield is allowed to assume the posiedges are 'rabbeted at'13' to fit the rabbets 10 tionof Fig. 3 saiddagger will engage the of; the bracket and which'is normally urged bunter at its notch 35' and turn it and con- 5 towardthe lay, that is, so as to abuta stop 14 sequently the rolling-rod (Fig. 3) to stop of thebraoket, by a spring, 15 interposed be-- the loom. At 37 is part of the means for retween theslide andastop' 16. On this slide is setting the shield in engagement with the vpivoted to move in a horizontal plane alever lock-lever.

17, its pivot being at 18 this lever is made The wound package may be formed by what 1 adjustable in its plane of movement by a isknown as the traverse-wound method (in which the layers of windings are successively advanced toward one end of the core) or otherwise so that in the unwinding more and -more of cthevlength of the core will be exposed: see Fig. 6, showing a nearly exhaust ed package.

In certain genera-l respects the operation of the structure comprising the carrier and feeler-levers snnulates that of the corresponds, ing structure, 1n the mentioned Jenn ngs patent and-others of that class; that is,so long as the feeler-levers (either, of them) obtain a skid-preventing hold on the package said structure simply is idly'repressed bythe package when the lay moves back, but if the pack age allows skiddingthereonyso that the feel will be understood 'thatthe normal position of the feeler levers is substantially that shown in Fig. lywhere 22 abuts'26 and the two'feeler-levers'form wlth the axis offthe package acute angles pointing-1n the same directionspecifically, acute angles whose salient sides relatively adjoin the pointed or conical end" 7 fiXBCl'StIHCi/UI-G and alsothe'reciprocatingilay of the package.

:. Thereis a' tendency for-such skidding or slippage to occur'when the conical end of the package, as occasionally happensyregisters with the more advanced end of feelerf lever 28 but this'tendency is prevented from becoming an actuality, so thatprematr re actuation ofsaidactuatedmechanism is avoidv ed, by the feeler-leve'rgQQ at that time obtaining a non-skid contact with the cylindrical partof thepackage;

Absence ofwindingsjbeingiinthe open at'ion'oif mechanisms of this class the cause of the skidding or slippage which Is 1n turn resp'onsible [for actuation 'oivthe actuated 1nechanism,"itof courseio'llows that eiie'ctual V if notall connection of "the filling with thef shuttle is disestablished. For this reason it is usual 'inithe use of this class of 'feeler mechanisms to Wind-the package with a spe-1 cial or ex trae formed mass ,or bunch of windings; By my invention this is not nec essary. Thus: WVhatever tendencythe feel eT-leVer QS hasito skid orslip on the'hard surfacetof the quill or core '4 whenever it touches the same as the unwinding gradually exposes'ln'ore and more ofthe length thereof 7 is opposed 'iby'the. feeler lever '2 2iwhioh re 7 mainsincontactwiththe windingsup to that stage where'- a "predetermined mass is left ,:(as'the'mass 5*, shown remainingonthe quill "in "Fig; 6) 'o'n reduct'ion of that mass, since lever "22,- the islippage occurs.

"1t will be seemiszsimply theinitial-part of the it no longer affords a grip to :the feeler; The amass 5 regular-windings, and of course ewhenactufl ationiofithe actuated mechanism occurs it "preserves f the fill-in'g 'in connection-"with the shuttle just as does the usual bunch. The

other, though usually that will be t-he case:

the advantage of thepotential two-point contact is thatif atone point there is for any reason tendency toward premature slippage at the other point there may be resistance t s h p age- I It is not new to provide for the feeler mechanism having a potential twospoint contact with the package; but WhGIGQtFlli-S has sheen heretofore proposed there "was ain eficot 1hut a'singlel'ever having two armS-"orcqnivalents affording the 'Ldouble contact and not two 'E-levers, pivotally.interlinked,-each affording a contact and each having a fulcrum indcpend 7 ent' of that of the-'other-lever, as in accordance with'this'inventioni- .r: Having thus fully described any invention what 1 claim is :4 f 7 I 1. In. a loom, the combination, with the thereof and withashutt-le? on the layhaving the axisof its contained filling package eX- tending lengthwise Of-jtl-lfl lat-5 103? a feeler mechanismcomprisingacarrier'on-saidstructure yieldable in one and 'normally -urged in 'Tthewother direction in which thelay recipro- CS/W98 i pair ioiifeeler levers haiving independ:

ent fulcra in the carrier andeach adapted to contact with the package and soiiset lengthwise of and projecting towardisaidaxis and forming therewith acute, angles pointing in approximately the same di-re.ction and each movable on itsfu'lcrum in a plane cutting the package lengthwise thereof, and means to transmit pivotal movement from each lever to the. otherk- 2. In a loo1n,---th'e i-combination,;,with the fixed structure gand also thereciprocating Vla-yythereot'and with ,a shuttle onthe lay having the ax-is of itsmontained-filling package extending lengthwise of the lay, of a feel ervmechan'isni comprising Fa carrier on said structure 'yieldable in one and normally I urged in the other direction-in which thejlay reciprocates, a pair of feeler levers having independent diulcra inQthe oanrier and each adapted Y to con-tact with th'e package and oil set lengthwise of and :jproieeti-ngytoavaaxd '-said axis and forming the-new-ith acute eagles and eaehmovable on its fulcnum in a plane cutting the package lengthwise thereofnd pointing-in approximately [the same-direction ing the axis of its contained filling package extending lengthwise of the lay of a feeler mechanism comprising a carrier on said structure yieldable in one and normally urged in the other direction in which the lay reciproeates, a pair of feeler levers having independent fulcra in the carrier and each adapted to contact with the package and ofi'set lengthwise of and projecting toward said axis one nearer thereto than the other and forming therewith acute angles pointing in approximately the same direction and each movable onits fulcrum in a plane cutting the package lengthwise thereof, and means to transmit pivotal movement from each lever to the other.

4. In a. loom, the combination, with the fixed structure and also the reciprocating lay thereof and with a shuttle on the lay having the axis of its contained filling package extending lengthwise of the lay, of a feeler mechanism comprising a slide on said structure yieldable in one and normally urged in the other direction inwhich the lay reciprocates, a feeler lever fulcrumed on the slide, a supporting member adjustable on the slide another feeler lever fulcrumed on said member, said levers being each adapted to contact with the package and oflset lengthwise of and projecting toward said axis and forming therewith acute angles pointing in approximately the same direction and each movable on its fulcrum in a plane cutting the package lengthwise thereof, and means to transmit pivotal movement from each lever to the other.

In testimony whereof I affix my signature.

. FREDRIK ZVVIEBEL. 

